Finding the Fourth Proportional to 4,388,408.20, 6,582,612.30 and 2,798,021.80
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Solution
The fourth proportional to 4,388,408.20, 6,582,612.30 and 2,798,021.80 is: 4,197,032.70
Step by Step Solution
- Step 1: Write the proportion equation
4,388,408.20 : 6,582,612.30 = 2,798,021.80 : x - Step 2: Convert to fraction form
4,388,408.20/6,582,612.30 = 2,798,021.80/x - Step 3: Cross multiply
4,388,408.20x = 6,582,612.30 × 2,798,021.80 - Step 4: Simplify right side
4,388,408.20x = 18,418,292,716,348.14 - Step 5: Solve for x
x = 18,418,292,716,348.14/4,388,408.20 - Step 6: Final answer
x = 4,197,032.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.